And in a new teaser for Sunday's Keeping Up With the Kardashians, it appears the supermodel still feels anxiety when releasing new projects. The minute-long teaser reveals a conversation between Kendall and Kylie about the fashion line they created together as sisters.

"I don't know why I'm so nervous," Kendall revealed in the clip. "I'm really proud of the line, but I've worked really hard to be taken seriously and recognized in Vogue and in the fashion world."

As the two start tearing up, Kendall went on to say, "If this doesn't go as well as we hope, it might tarnish some things in the modeling world, so it's even more frightening." She went on to address critics of her family in general, saying: "Everybody wants an excuse to talk sh*t and I don't want this to be that."

At the very least, the clip proves that the sisters will always have each other's back. Also, judging from their past collection debut at New York Fashion Week, their collection was generally well-received.